problem??

Looks fairly normal to me - looks like a birch tree? You will generally find that very little will grow around the base of a tree due to the lack of light and the thirst of the tree.

 

Survival of the fittest is the way of it for weeds - if they cannot grow rapidly in the face of adversity, they do not survive.

You can get some shade loving plants that might thrive under the tree, but I suspect that you would never be done watering and feeding them.